Overview

Models GRS/GRSF

These spun aluminum power roof ventilators (PRV) are designed as intake or relief units for natural gravity or negative pressure systems. Model GRSI for intake and model GRSR for relief have an appearance to blend with other Greenheck products like Models G and GB. The model GRSF has a built in flashing flange for quick and easy installations without a roof curb.

Model RGU

The RGU gravity upblast ventilator is designed for use as a weatherproof outlet on vertical high velocity exhaust systems

Model WIH/WRH

These louvered penthouse ventilators are designed for where aesthetics are a concern. The housing is a louvered penthouse style that features extruded aluminum louvers. These models are designed for intake and relief applications for natural gravity or negative pressure systems. The louver design affords lower pressure drops while maintaining low hood heights and avoids the problem of detracting from architectural aesthetics. Their appearance blends with other Greenheck products like Models LDP, LBP, RSFP, and LSF.